Home / 385,397,238.54-578,003,295.11-177,936,320.42

Finding the Fourth Proportional to 385,397,238.54, 578,003,295.11 and 177,936,320.42

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Solution

The fourth proportional to 385,397,238.54, 578,003,295.11 and 177,936,320.42 is: 266,861,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,397,238.54 : 578,003,295.11 = 177,936,320.42 : x
  2. Step 2: Convert to fraction form
    385,397,238.54/578,003,295.11 = 177,936,320.42/x
  3. Step 3: Cross multiply
    385,397,238.54x = 578,003,295.11 × 177,936,320.42
  4. Step 4: Simplify right side
    385,397,238.54x = 102,847,779,518,729,072
  5. Step 5: Solve for x
    x = 102,847,779,518,729,072/385,397,238.54
  6. Step 6: Final answer
    x = 266,861,744.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.